Brahma Microprocessor-based controller TGRD91 18047160

The Brahma TGRD91 is a microprocessor-based controller (burner manager) from the Kompact series, designed for full automation of ignition, flame monitoring, and safety of single-stage liquid fuel (diesel) air heaters and burners. It can also be used with gas atmospheric burners operating in intermittent mode. The device integrates a high-voltage ignition transformer, simplifying burner design. It features a pre-purge time of 10 seconds and a safety time of 5 seconds, with a non-volatile safety lockout that requires manual reset. Flame monitoring is via ionization, with a reaction time of less than 1 second in case of flame loss. This part number 18047160 is an original spare part for Master BV 47, BV 57, BV 77, BV 110, BV 170, and BV 290 series air heaters (since 2013).

Parts of this type are selected by matching the exact series and type designation, supply voltage, safety time, pre-purge time if applicable, and flame detection method (ionization, UV, or IR). The physical base or plug pattern must also match the existing socket. Burner controls are generally not interchangeable across series, even within one brand, because a mismatched safety time creates a safety hazard. Always verify the original part markings before ordering.

Items of this kind typically fail by entering a lockout state due to no flame after the safety time, ionization circuit break, or ignition failure. The equipment stops fuel supply and requires manual reset after troubleshooting. Other failure modes include failure to start, intermittent operation, or no spark. Check the flame detector, ignition transformer, and wiring connections.